Hi guys !
I found on a french website I often visit that kalos starters will be able to mega-evolve.

The website claims that the press release name on the e-mail they got was wrong and hinted mega-evos for the starters.

You can watch the article here : http://www.pokebip.com/pokemon/news2756__pokemon_x_et_y_:_une_mega-%C3%89volution_pour_les_starters_de_kalos_.html

I honnestly trust them, they are a very reliable source and I don't think it's fake... what do you think about it ?